Electrical apparatus.



J. M. BARR.

ELECTRICAL APPARATUS.

APPLICATION FILED JULY 17, 1905.

Patented Jan. 2, 1912- 2 SHEETSSHEET 1 Fly. 1

INVENTOR I 71! 441W ATTRNEY WITNESSES:

J-. M. BARR. ELECTRICAL APPARATUS.

APPLIOATION FILED JULY 17, 1905.

P atnt ed Jan.2, 1912.

2 SHEETS SHEET 2.

my in.

WITNESSES;

may be connected'to the circuit froiri which energy is received.

When collector rings are mounted in such,

a position, that themagnetic Box in the core passesthrough' them, 1t;is advisable to provide'an 'openlng in the ring in which insulation may be inserted to prevent the induction of a short-circuited current in the ring and,

in regulation, where such. short -circuited cur-rents would be excessive, a pair of narrow brushes, which areconneetedby an inductive or other suitable resistance, may be advantageously employed to' engage the ring in which two opposite portions of the core are rotatably mounted. Fig. 2 is aJ'similar' '25 view, in; which spools or bobbins .a'rerotatably mounted on two opposite fixedportions' of the core. Fig. 3 is a diagrammatic view of the circuit connections of; the regulators disclosed in Figs'. l and 2, and Fig. 4 is a view, similar to Fig.2, of a regulator that is provided with independent ;fixed primaryand secondary windings in a ddition to the regulating winding ofmyinvention Referring to,Figs. l and 3, a magnetiqable core 1 comprises two fixed portions 2 and 3 and a plurality of rotatablymonnted portions 4, and 5 that are provided with shaft extensions (3 and? upon which slip-rings 8 and 9 and pinions 1 0 and 11 are mounted. The rotatable portions may be simultaneously driven by a gear-wheel 12 which engages the pinions and may be driven by any convenient means, such, for. examplefasfa hand-wheel 13." The slip-rings 8 and 9 ia i"e insulated from their respective shafts and are connected to opposite 'ends' of a flexible winding 14, which 'is coiledabout the rotatable core portions 4 and fiin'such a way that its turns may be distr buted between the'twoportions or maybe ntirely-wound on either p'ortion, their p sitionpad idjistribution being determined bfyfthe"slnmltaneous rotation of the-cores'uponflwlnch they'are mounted.-

1hecore l'i'n'ay' he further provided witln a- -f fixed ma'gnetizing coil 15, which is connected 'across an electric supply circuit 16---.--!? and,

is supplied-with energy" therefrom. lhe.

slip-rings 8 and 9 are'en'gagedby a pair of.

brushes l8 and 19, which are connected in series with the-line conductor 17, so that the entire circuit current passes throughthe ilexihlewvinding l' l'eitcept that which. is snp plied .to the s'tatioi'l'ary' coil 15.

of airegthrough thepinionslOand 11, v

.ner as to include the winding .the main'eircuit.

VVhen-all'the turns of the winding are motive force induced therein is in the same direction 'as'that ofthe line 16-17, so that its value is added to that of the line. When the turns in the winding Hare evenly distributed between the two core portions i and 5, the electromotive forces induced in the two portions oppose each other, substantially neutralizing. their effect upon the line, and when the turns of'the windingv 14.- are all transferred to the portion 5, the 'electroinotive force induced therein is opposed to that of the line, plied'therefrom is less than the line voltage.

Any variation between these two values may be obtained by proper. distribution of the turns of-the winding let between the core portions tand 5.

' Referring'to Fig. 2, a magnetizable core.

20 corresponds to that of F ig. -1 and comprises a contim'ious-magnetic circuit the j-zortions of which are relativelyfixed)v A plurality of spools or-bobbins 21 and 22 are rotatablymounted upon tthertwo oppositeportions of. the core 20. The flexible wind Each -of the rings 24: and 25 is preferably provided .with a short insulating segment 25 in order to prevent the generation of secondary currents therein; Two brushes 26 a re provided- I on the rotatable core portion 4,. the electro- "so that the voltage ap- 'ing 23, which corresponds to thewinding '14 of Figs land 3, is wound upon the spools .2Land 22 and its ends are respectively connected to slip-rings 2a and 25.

tomake contact with the ring 24 and may be connected to the ends of a prerenth'e resistance 26. The ring-25 is similarly provided with two brushes 27 that may be connected to the-terminals of a preventive resistance 27. The middle pointsof the preventive" resistances 26? and 27" are connected to the interrupted line conductor 28 in such man- Any suitable means for driving the spools 21 and 22 may be employed, such as gear wheels- 30 and. 31, whichare keyed to the spools, and a similar gear-wheel 32- that may 23 in series in be actuated by a hand-wheel 33 or otherwise. i

The magnetizingwinding 15 may be located and connected in circuit substantn lly as in the modification shown in Fig. 1.'

Referring to. Fig. 4, energy is supplied from an electric supply line 34-43% to a primary magnetizingwinding 36, which corresponds to the fixed winding 15 of Figs.

1, 2 and 3 and is mounted upon .a magnetizable core 27.- An independent fixed secondary is connected in series with a'llcxihle winding 39, which corresponds to the windings l-1 and 23 of Fi 's. l and 2.

ln the system shown in Fig. 4:,- the energy erg, by induction, from the Jwimljng 38 is i'ilounted upon the core 37 and for the work circuitf40-'41 is supplied by the winding which, in turn receives its enwinding 36, the13t) imam? ,8

system'beingdifirent from that shownin Fig, 2. only inhaving tow inductively related circu ts in place ofa; single circuit. a

I'claim as 'my invention: .1

I 1-; The combination with a magnetizable core and ii flexible winding therefor, of means for transferring apart or all of the turns of the winding from one portion of said core to another such a manner, as to core and a I flexible wholly or. partially neutralize its eflect or to make: 1t maximum in either direction.

2. The combination with a magnctizable winding therefor, of

' me ns for transferring a part or all. of the tnrns'ofthe winding from one portion to another portion of saidcore.

The combination with a ma netizable core and a fiexible winding therefor that it p erin'ant'gnt-ly connected in an electric supply" circuit, of fmeans'for transfer rlng a part or all ot -the-turns of the wind ng from one.

portion 'to another portionofsaid core.

' 4; The combinationxvith a magnetizable j core, "a magnetiz ng winding-and a flexible.

regl'llatingv winding therefor, pf means for transferr ng the turns of said regulat ng winding from onev ort-ion to another portion of said core W thout disconnecting the regulating winding. V g

5, flhe combination with an electric circuit and a Voltage regulator-[therefor com,- prising a-magnetizable core and a plurality of magnetizing windings therefor, one of Whichis flexible and is connected in series relation to said circuit, of means for transferring apart 'or all the-turns of the flexible Winding from one portions-to another porcore and a plurality tion of the core 'without interrupting the iso The combination with an electric-supply line, of; means for regulating the-voltage applied therefrom that comprises a stationary Windingand a flexible series-winding which .a'r'e wound on the same magnetic core,

and means for transferring allor a part of j the. turns of saidseries winding from one portion to another portion of said core,

The xcombination with a magnetizable core, a tired magnetizing w1nd1ngtherefor I and a pair of rotatable spools SUII'OUTKllng portions of the core, offa flexible magnetizing winding located on said spools, and means for transferring the turns of the flexible coil from one spool'to the other.

,9. The combination with an electric cir-' cuit an'd'means for regulatingthe voltage -.the reofth'at comprises a magnetizable core,

series winding" and means for transferring the turns of .the1flexible Winding portion of the core to another portion with out interrupting the circuit connections of saidwvinding' A a l0. The combination with an electric su ply circuit, of avoltage regulator compr1s from one a stationary magnetizing-winding, a flexible mg a magnetizable core, a primary-magnetrzmg windingconnectedto saidsupply cir-i' c'uit, a secondaryfwinding, and means for transferrmg any desired a flexible winding wound; .0

member, of means for removing and replacing one ,or'more turnsjof said flexible wind-.-. i Om; itsacirouitm 12, Thecombination; with a magnetiza'blecore, a magnetizing winding 'there for, a -plu-i rality offspools ,bobbin'sjrotatably mountmg without ,disconnect-ingit ed thereon, a;v collector ring and; a, gearpinion mounted on .each. spool,

number .of turns ofs said secondary wlnding from one portion of. the core to. another portion thereof. i-

11. Thecombination w'itha magnetizable' core provided with. a rotatable member, a 5 fixed magnetizing winding for said core and n the rotatable.

and means for 2 simultaneously rotating said. spools, said means compr sing a .drivingsha tt which isgear wheel.toengage said pinions, ofa flexible winding disposed on; said sp'oolsi and; iconneoted-tojsaid collector 5.

provided with a rings.

ralit-y of-spools'or bobbins rotata-bly mount 13. Tl1e combination-with. core, a magnetizing winding-therefor a plu- 1 1 0.1 .ed thereoma-collector ring and a gear"pi n-.-..

ion mounted on each spool, and simultaneously rotating said spools, said means -for-:

means comprislng-a driving shaft-which is provided with a gear wheel, to engage said.

pinions, of a winding consisting of ai plnrality of by the simultaneousrotatibnofsaid spools that the-electromotive force induced in eachturns of flexible conductor which. are transferredzfrom one spool to the other turn is reversed in direction. as the transfer takes place. 1

E 14. The-pom-bination vv-ith amagne'tizable core, a pair of spools or bobbins rotatably nounted thereon, anda primary magnetiz- 1 15c ing winding therefor, of-a flexible secondlary wind ng one or more turns 0f:'-Wh10l1 are woundon said spools and are transferred from one portion .of'the, core itoanother. porrionby the simultaneous rotation of the spools. 1

15. The combination with source of alternating currentelectricatenergy, .a mag netizablecore, a-(pair of spools .or bobbins rotatably mount thereon, and aprima-ry magnetizing; inding therefor that connected to said source, of a flexible-sectndary winding connected to said source, one or more turns of which are Woundupon said spools and are transferred from oneportion iso of the core to another portion simultaneous rotation of thespools- 16. The combination with-a mag'netizable windmg therefor, means for simultaneously rotating said spools, and a source of alternating current electrical energyconnected to said primary winding, of asecondary winding having a plurality of turns mounted upon said rotatable'spools and so transferable from one spool to the other, 'as saidspools are rotated, that the elect-romotive force induced therein acts in either direc-' tion or wholly or partially neutralizes itself.

17. The combination with a source of alternating currentenergy, a niag netizable core, a primary magnetizing winding mounted upon said core and energized from said source," and a secondary" winding for supplying energy to an external circuit, of means for transferring one or more-turnsof the secondary winding from one portion of the core to another portion thereof.

18.- The combination with a source ofal-. ternating current energy, a magnetizable core, a primary magnetizing winding mounted upon said core and energized fromsaid source, and a secondary winding for sup'-.

plying energy to "an external circuit-,- of

means for transferring one or more turns of the secondary winding from one portion of the core to another. portion thereof, said means comprising a plurality of spools or bobbins rotatably mounted upon said magnetizable core and means for simultaneously rotating the spools.

19. A voltage regulator for electrical distributmg systems lneludmg a transformer and means for winding and unwinding one I of its conductors to vary the effective volt age of one of its circuits.

20, In a voltage regulator for electrical distributing systems, a transformer and a reel for supporting part of its winding, whereby the voltage may be varied by shifting the windingupon and from the reel.

21. In a voltage regulator 'for systems of electrical distribution, a transformer and two rotary elements upon-which part of its winding-is adapted to bewound and unwound. V

22. In a voltage regulator for systems of electrical distribution, a transformer ha ving a part thereof around which a secondary winding is laced, and around" which the secondary wlndingis adapted to be wound and unwound I 23. In a'voltage regulator, the combina-- tionwith a primary and secondary winding, and means energized by the prnnary current for generating the voltagem the secondary winding, and a reel upon which the secondary winding is adapted to be-wound and unwound for varying said voltage.

24. In avoltage regulator, a transformer,- a reel and aconductor thereo surrounding ythecore of the transformer an upon which said conductor is adapted to be wound and unwound. p

25. In avoltage'r'egulator for electrical distributing systems, a transformer and reels ca-r ying part of its winding in its magnetic field, said winding being adapted to be wound and-unwound from one reel to. another. Q s

26. A voltage regulator for electrical distributin'g systems including a transformer and means for winding and unwinding one of its conductors'to vary the effective 'voltage of one of its circuits. and means for taking the current. to and from said circuit.

27. In a voltage regulator for-electricalreel for supporting part of its winding, whereby the voltage may be "aned by shift-' short-circuiting of the transformer. 30.. In avoltage regulator for electrical reel for supporting part of itsswinding, in

ment and brushes for taking current to and from said segment.

' '31. In a voltage regulator for electrical distributing 1 systems, I a transformer, reels transformer is adapted to be wound and unwound in such manner that the part wound, upon one reel has generated in it a voltage in opposition to that generated in the part with meansfor taking the current to and from the secondary winding. y

In testimony vwhereoffI have hereunto 1905. M oH'NMrBARn. -Witnesses: I, Q J. M. Rooenns Binary Hines distributing systems, a transformer, and a.

current from said winding and preventin 10 distrilmtingsystems, a transformer, and a...

combination with a current-collecting seg- 10- upon which the secondary winding of the wound uponthe other ree incombination 114 subscribed my na'me this 8th day of July, 

